THAILANDSICThailand Standard Industrial Classification

TSIC Activity

42909

Construction of other civil engineering projects, not elsewhere classified

ประกอบกิจการรับเหมาก่อสร้างอาคาร อาคารพาณิชย์ อาคารที่พักอาศัย สถานที่ทำการ ถนน สะพาน เขื่อน อุโมงค์ และงานก่อสร้างอย่างอื่นทุกชนิด รวมทั้งรับทำงานโยธาทุกประเภท

Definition

Construction of public utilities and facilities (except for industrial plant buildings), construction and repair of mines, such as mineral conveying and discharge stations, mining tunnels, construction and repair of outdoor sports facilities, including areas separated for land development (e.g. road construction and public utility infrastructure).

Excluded from this code

  • Construction of non-residential buildings, see activity 41002
  • Construction of outdoor swimming pool. View activities 43909
  • Land allocation without land development, see Village No. 681
  • Consulting activities for projects related to civil engineering, see activity 71102.

Foreign ownership

List 3: Restricted, FBL/BOI route availableinherited from 42

Construction, except construction of infrastructure providing basic public services in public utilities or transport that requires special apparatus, machinery, technology or expertise, and except other categories prescribed in ministerial regulations

The infrastructure carve-out is subject to a minimum foreign capital requirement, subject to capital thresholds, verify current figures.

FBA B.E. 2542, List 3 (10)Routes: Foreign Business Licence, BOI promotion, US Treaty of Amity

Auto-mapped, verify against the Act. These TSIC mappings are indicative, not legal advice; the schedules of the Foreign Business Act B.E. 2542 are the authority. See the full foreign ownership reference.

Industry at a glance

as of 22 ก.ค. 69

The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.

1,792
active companies operate here
฿54.9Bregistered capital, combined
฿31.9B
Sector revenue · 2025
+38% since 2023
฿-259316283
Net profit · 2025
774 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
11%of new registered capital is foreign-held
฿24.8M foreign฿210.7M Thai

Foreigners are actively investing in this activity.

1 of the 5 largest companies here are foreign-owned Thailand subsidiaries.

New in 2026

131+211.9%

registrations, YTD

Registered capital

฿54.9B+1.1%

since year-end

Largest by revenue

  1. 1เชียร์ ยู คอนสทรัคชั่น(ไทยแลนด์) จำกัด฿1.4B
  2. 2ไชน่า เรลเวย์ นัมเบอร์ 2 เอ็นจิเนียริ่ง กรุ๊ป (ประเทศไทย) จำกัดintl฿1.4B
  3. 3ธงไทยหันคา฿1.3B
  4. 4สหการวิศวกร จำกัด฿906.4M
  5. 5กิจการร่วมค้า บริษัท ไชน่า เนชั่นแนล เฮวี่ แมชินเนอรี่ คอร์ปอเรชั่น และบริษัท ฟิวเจอร์ อีเล็คทริคอล฿765.0M

Largest by registered capital

  1. 1บลิส อินเทลลิเจนซ์ จำกัด (มหาชน)Bangkok฿37.8B
  2. 2วี.เอส.เค ร่วมค้า จำกัดBangkok฿1.1B
  3. 3บางปะกง อินดัสเทรียล เอสเตท จำกัดBangkok฿1.0B

Source: Department of Business Development DataWarehouse. Financial figures are combined totals of companies that filed statements; revenue and profit shown for the latest three reporting years.

Companies registered since 2022

Browse all

New DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.

328
Registered
since 2022
317
Still active
11
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 80 in 20242026

Largest active companies by registered capital

Source: Department of Business Development (DBD) new-registration records, 2022 to present. Counts cover companies first registered in that window, reflect the latest snapshot load, and may lag the live register.

Emerhub

Restricted activity? There is usually a route.

Emerhub structures foreign-owned companies around FBA restrictions: Foreign Business Licence applications, BOI promotion, and compliant shareholding structures. Talk through your case before you commit to one.

Talk to Emerhub Thailand